Himself an electrician

Medical disposable syringes used for injections, thanks to the efforts of enthusiasts of technical creativity began to find further applications. For example, in Amateur practice, in particular during the dismantling of electronic components with printed circuit boards (especially in remote places where there is so often no “third hand”). However, the basic syringe has to be changed accordingly (modified).

Use in the kitchen local lighting. As a rule our kitchens are covered the only light source is the ceiling or a chandelier hanging somewhere near the ceiling, in the middle.

Most often, this lamp General purpose lights no matter Desk — when the hostess is preparing lunch, she closes herself from the world of the working area on the plate.

Inconvenient such a lamp and in that case, when the family gathers at the dinner table (usually standing at the window or wall) — it illuminates not the table, and the center of the kitchen. In the end, for normal illumination of the working and dining tables in the chandelier have to screwing the lamp of high power, thus causing high power consumption.

Circuit of electronic fuse alternating current, represented in the figure, protects the circuit in which the output is regulated by the triac (or just the triac operates in the mode “connect – disconnect”) by removal of the control signals when current exceeding the specified value (emergency operation).

Before proceeding to describe the proposed design should make an important note. Developed contactless control can be applied not only in computer technology. Described constructive design and purpose of the device is just one example of its possible applications.

Among fans of aviation history well-deserved popularity of the computer game “Il-2. Forgotten battles” with many additions. No history textbook do not explain the calm courage of the pilot of attack aircraft, precisely as in a laboratory experiment, leading on the combat course is tormented by flak machine. Or the frenzied excitement of the pilot “the Ride”, seeing as growing in his sight silhouette “Boyana”.

Device for automatically switching-off the lights in the bathroom (dressing) room are designed to seamlessly allow the following situations: 1. In the served room is unoccupied, the door is closed or locked from the outside, the light is not lit. 2. Still in the bathroom (the toilet) no one. However, the door is open and lights are on. This situation occurs when the mean in the bathroom (toilet) for something: for example, a rag or a bucket or to execute the cleaning. 3. Inside behind a locked door is a man and the light in this room must be turned on (lit lamp ЕL1).

Unusual sounds and sound effects using simple electronic consoles on-chip CMOS that is able to capture the imagination of readers.

The scheme is one of such boxes, presented in figure 1, was born in the process of various experiments with the popular CMOS chip К176ЛА7 (DD1).

This scheme implements a cascade of sound effects, especially from the animal world. Depending on the position of the engine variable resistor mounted on the circuit’s input, you can get almost real to the ear sounds: “croaking frogs”, “Nightingale trill”, “meowing cat”, “the bellowing bull”, and many others. Even the various human unintelligible combination of sounds like a drunken exclamations, and others.

This attachment attaches to a regular television properties, a musical installation by changing the color of the image, respectively, the acoustic sound signal. When using the TV picture when speaking of the audience changes the color color.

Another use of the prefix is a color support of music programs with the aim of increasing their entertainment. Color television image will vary depending on the frequency and amplitude of the music signal. So, instead of blue and red appears green and green color changes to blue. Instead of crimson shade appear purple or brown. Patches of white telesurgery acquire pink tones. There are many different color combinations.